1) Holy White Otter-Tape Trasher
2) a much more intense version of "what?!"
person1: dude, he totally just trashed that white otter-tape
person2: what a HWOTT
person1: the sex pistols suck!!
person1: i just killed a guy.
person2: HOLY WHITE OTTER-TAPE TRASHER!!!!
stands for Holy White Otter Tape Trashers; a more intense way of saying what; a term used for shocking or suprising moments, or to describe a moment or person.
HWOTT? No he didn't!
What a holy white otter tape trasher!
HWOTT!? Thats INSANE!
HWOTT!? That was shocking!